diff --git a/Makefile.am b/Makefile.am
index cc0dfa6d0c..acf839ecc2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -48,6 +48,7 @@ EXTRA_DIST = \
   macros/as-scrub-include.m4 \
   macros/compiler-flags.m4 \
   macros/g-wrap.m4 \
+  macros/ac_pkg_swig.m4 \
   macros/gnome-guile-checks.m4 \
   macros/legacy_macros.m4 \
   po/gnucash.pot \